Cropping The Floor Plan Image; Sizing A Non-Cad Floor Plan - Dell PowerConnect W-Airwave User Manual

"Error Checking of CAD Images" on page 285
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"Last Steps in Editing an Uploaded Image" on page 286
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Cropping the Floor Plan Image

Use the cropping handles (red circles) to remove extra white space around the floor plan. VisualRF will calculate
an attenuation grid for the entire map including white space. Reducing the white space on a floor plan will
increase location accuracy and decrease the load an on the server. A good rule of thumb would be about ½ inch
white space, if possible, on all sides.
VisualRF dissects each floor plan into a grid consisting of cells specified in this setting. The Core Thread service
calculates the path loss for every radio to every cell on the floor plan.
By default the importation wizard allocates 2,500 grid cells to each site based on dimensions. If you have a site
that is 250 ft. by 100 ft, the Floor Plan importation wizard would calculate the grid cell size at 10 feet. 250 ft. x
100 ft. = 25,000 ft. 25,000 ft. / 2,500 ft. = 10 ft.
NOTE: Decreasing the grid cell size will increase accuracy, but it also increase CPU consumption by the floor caching threads and
the location caching threads. Check the System > Performance page to ensure your server is functioning properly when you make
a change to this setting.
Other items worth noting:
If this is a CAD file, then the Floor Plan creation wizard will automatically inherit height and width from the
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drawing.
If this is a non-CAD file, then the height and width is zero.
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CAD files are converted to a JPG with a resolution of 4096 horizontal pixels at 100% quality prior to cropping.
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If you crop, then you will lose clarity.
CAD files may not exceed 10 MB.
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Metric CAD files are supported.
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Importing GIF files for floor plans will result in blank QuickView thumbnails.
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Sizing a Non-CAD Floor Plan

You should not have to resize a CAD drawing unless you see nonsensical dimensions. To resize a non-CAD image
if you already know the dimensions, follow these steps:
1. Select the Manually Measure Floor button in the Dimensions section. The pointer changes to a cross-hair
icon.
2. Locate two points within the floor plan that you know the distance. Most door jams (door openings) are 3
feet.
3. Select and hold to establish the first point and drag your mouse to the second point and release.
4. A distance dialogue box appears. Enter the proper length in feet, as shown in
Figure 229 Manually Measuring a Floor Plan
5. Select OK.
Floor plans can be resized in VisualRF after they have been uploaded. Within VisualRF you will also be able to
zoom in on a room or doorway to increase the accuracy of your sizing.
284 | Using VisualRF
Figure 229.
Dell PowerConnect W-AirWave | Version 7.3